In this paper we study the possibility of forming asymmetric Wolf-Rayet nebulae
as a direct result of equatorial anisotropies in the blue supergiant stellar wind
preceding the Wolf-Rayet phase.
We present a two-winds toy model for the investigation of circumstellar medium
generated from the evolutionary phase transition of different latitude-dependent
distributions.
Our MHD simulations are performed with a
spherically-symmetric grid in the 2.5D fashion, using the
pluto code [1]}, [2]}, [3]}.
We concentrate on the \(\sim 10\, \rm pc\)  surrounding the star, and treat both stellar
magnetic field and stellar rotation, using a combination of the recipe for asymmetric winds
of [4]} and magnetised astropsheres [5]}.
This study updates the pioneering work of [6]} on the early
aspherical evolution of young Wolf-Rayet nebulae from red supergiant stars. Particularly,
our toy model permits to change the rotation, mass-loss, magnetic properties of the evolving
stars, while simultaneously exploring the phase transition interval between the two evolutionary
stages. It allows us to explore at reduced computational costs, the wind-wind interaction of typical
magnetised stellar outflows responsible for the shaping of circumstellar nebulae.
We also explore, by means of radiative transfer calculations, the emission properties of those gas
nebulae.
